Physics, 20.09.2020 18:01, jacquelineS7691
19. A cylindrical copper rod has resistance R. It is reformed to twice its original length with
change of volume. Its new resistance is:
a. R
b. 2R
d. R/2
c. 4R
Answers: 1
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19. A cylindrical copper rod has resistance R. It is reformed to twice its original length with
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